GLOSSARY
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© 2009, AWI, AWMAC, WI - Architectural Woodwork Standards - 1st Edition, October 1, 2009
As may be updated by errata at http://www.awinet.org, http://www.awmac.com, or http://www.woodworkinstitute.com/awserrata/RED BIRCH: The heartwood of the Yellow Birch tree.REGLET: Defines a flat, narrow molding, used chiefly to separate the parts or members of compartments or panels from one
another.RELIEF: Defined as the difference in elevation between the high and the low parts of an area or where a form is raised (or
alternatively lowered) from a flattened background without being disconnected from it.REPAIRS, BLENDING: Wood or filler insertions similar in color to adjacent wood so as to blend well.RESORCINOL FORMALDEHYDE RESIN: For woodworking, formulated into highly water-resistant glues, usually purple in
color and difficult to work.RETURN: Continuation in a different direction of a molding or projection, usually right angles.REVEAL OVERLAY: Cabinet construction in which the door and drawer faces partially cover the body members or face frames
of the cabinet with spaces between face surfaces creating decorative reveals.RIFT CUT: Usually referring to veneers, but can be applied to solid lumber (usually as rift-sawn); this method is similar to quarter
slicing, but accentuates the vertical grain and minimizes the fleck of the finished material. Veneer produced by cutting at a slight
right angle to the radial to produce a quartered appearance.RING, ANNUAL GROWTH: The growth layer put on in a growth year.RISER: The board at the back of a tread that “rises” to the bottom of the next tread above. In an “open riser” stair, this element is
left out, and the gap between the treads is open. Open-riser stairs are prohibited by code in many circumstances.ROOM MATCH: Refers to the matching of panel faces within a room.ROTARY SLICING: Most common method for preparing veneers for softwood plywood. The log is placed in a lathe and rotated
against a stationary knife. This produces a more-or-less continuous sheet of veneer, similar to pulling a long sheet off a roll of paper
towels.RUBBER MARKS: A raised or hollowed cross-grain cut caused by a sliver between the knife and pressure bar when slicing
veneers.RUNNING MATCH: Each panel face is assembled from as many veneer leaves as necessary. Any portion left over from one
panel may be used to start the next.RUNNING TRIM: Generally combined in the term “standing and running trim” and refers to random, longer length trims delivered
to the jobsite (e.g., baseboard, chair rail, crown molding).RUNS: The result of spraying a heavier coat on a vertical, or nearly vertical, surface than the viscosity of the finish will allow to hold
without movement; when in close multiples are also called “sags”.RUPTURED GRAIN: A break or breaks in the grain or between springwood and summerwood caused or aggravated by excessive
pressure on the wood by seasoning, manufacturing, or natural processes. Ruptured grain appears as a single or a series of distinct
separations in the wood, such as when springwood is crushed, leaving the summerwood to separate in one or more growth
increments.S4S: Means “Surfaced Four Sides”, and generally refers to the process of reducing nominal-sized rough lumber to finished widths
and thicknesses.SAGS: In finishing, partial slipping of finish film creating a “curtain” effect.SAND-TROUGH: A defect on the exposed visible surface, such as depressions, bumps, marks, or core usually caused by thin
veneers or over-sanding.SANDED, CROSS: Sanded across, rather than parallel to, the grain of a wood surface.SANDED, MACHINE: Sanded by a drum or equivalent sander to remove knife or machine marks. Handling marks and/or grain
raising due to moisture shall not be considered a defect.Glossary (Page 19 of 25)
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